12000203 has 4 divisors (see below), whose sum is σ = 12057288. Its totient is φ = 11943120.

The previous prime is 12000133. The next prime is 12000239. The reversal of 12000203 is 30200021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12000203 - 2¹⁰ = 11999179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28226 + ... + 28647.

It is an arithmetic number, because the mean of its divisors is an integer number (3014322).

Almost surely, 2^12000203 is an apocalyptic number.

12000203 is a deficient number, since it is larger than the sum of its proper divisors (57085).

12000203 is an equidigital number, since it uses as much as digits as its factorization.

12000203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57084.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 12000203 is about 3464.1309155400. The cubic root of 12000203 is about 228.9441394867.

Adding to 12000203 its reverse (30200021), we get a palindrome (42200224).

The spelling of 12000203 in words is "twelve million, two hundred three", and thus it is an aban number.